KEYES HM-10 User manual

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HM-10 Bluetooth-4.0
Introduction
HM-10 Bluetooth-4.0 adopts TI CC2541 chip, configuration space of 256Kb . It
supports AT command. Users can modify working mode (master/slave), baud rate,
device name, paring password etc.
Specification
1. Bluetooth protocol: Bluetooth Specification V4.0 BLE
2. No byte limit in serial port Transceiving
3. In open environment, realize 100m ultra-distance communication with iphone4s
4. USB protocol: USB V2.0
5. Working frequency: 2.4GHz ISM band
6. Modulation method: GFSK(Gaussian Frequency Shift Keying)
7. Transmission power: -23dbm, -6dbm, 0dbm, 6dbm, can be modified by AT
command.
8. Sensitivity: ≤-84dBm at 0.1% BER
9. Transmission rate: Asynchronous: 6K bytes
Synchronous: 6k Bytes

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10. Security feature: Authentication and encryption
11. Supporting service: Central & Peripheral UUID FFE0, FFE1
12. Power consumption: Auto sleep mode, stand by current 400uA~800uA, 8.5mA
during transmission.
13. Power supply: 5V DC
14. Working temperature: –5 ~ +65 Centigrade
15. Weight: 3.2g
16. Size: 46*17*5mm
Circuit connection
Sample Code
int val;
int ledpin=13;
void setup()
{
Serial.begin(9600);
pinMode(ledpin,OUTPUT);
} void loop()
{ val=Serial.read();
if(val=='a')
{
digitalWrite(ledpin,HIGH);
delay(250);
digitalWrite(ledpin,LOW);
delay(250);
Serial.println("keyestudio");
}
}
HM
-
10 Bluetooth
-
4.0 V2
Arduino Uno
1 VCC 5V
2 GND GND
3 TX D0(RX)
4
RX
D1(TX)

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Installation:
Download the zip file and unzip, copy the folder “hm-10 APP” to your phone’s
directory. Open My Files , click on HC_BLE 助手.apk and install on your phone.
Connect the HM-10 to the Arduino as per table above and connect an LED with a 470
ohm resistor, positive to pin 13 and negative to ground of theArduino. The on board
LED of the module will blink when powered up. Open the APP, press on the gray tab,
press on ####:HMSoft. The on board LED will stop bilnking. Type “a” and send,
returns “keyestudio”. Each time you press “a” it will return “keyestudio”, the LED on
the Arduino will also blinks once every time “a” is sent.
DOWN LOAD ZIP FILE: http://www.mantech.co.za/downloads/hm-10 APP.zip
See video for more help on connecting:
http://www.keyestudio.com/wp/category/video/ks0174/
HMBLEComAssistant.apk in the package can be used for testing.
Develop iOS or Android mobile phones. Please visit
http://www.jnhuamao.cn/download.asp?ID=0 Download the latest source code for
reference!
WIKI:
http://wiki.keyestudio.com/index.php/Ks0174_keyestudio_HM-10_Bluetooth-4.0_V2

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-------------- HM-10 module configuration, requires USB to TTL device. Not wireless pairing is
configured! (Because of wireless pairing, the data is directly transmitted)----------
1. If the LED is not paired withthe remote device, the LED flashes slowly. At thistime, the AT command
can be used to configure the module.
2. HM-10 module can only recognize all uppercase AT commands, and does not support lowercase and
uppercase mixed writing.
3. Factory default baud rate is 9600 8n1
Slave setting
AT+BAUD0 //9600 will be powered off and restarted after the setting is completed.
AT+NAMEAC
AT+PASS000000 //You must enter 6 digits
AT+TYPE1
AT+ROLE0